Volume 16, Issue 3 pp. 223-226
Research Article

Anxiogenic properties of Ptychopetalum olacoides Benth. (Marapuama)

A. L. da Silva

A. L. da Silva

Curso de Pós Graduação em Ciências Biológicas-Bioquímica, Universidade Federaldo Rio Grande do Sul, Av. Ramiro Barcelos 2600, 90035-003, Porto Alegre, RS, Brazil

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S. Bardini

S. Bardini

Laboratório de Etnofarmacologia, ICBS, Universidade Federal do Rio Grande do Sul, Av. Sarmento Leite 500/202, 90046-900, Porto Alegre, RS, Brazil

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D. S. Nunes

D. S. Nunes

Departamento de Química, Universidade Estadual de Ponta Grossa, Campus Uvaranas, Bloco M, 84030-310, Ponta Grossa, PR, Brazil

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E. Elisabetsky

Corresponding Author

E. Elisabetsky

Curso de Pós Graduação em Ciências Biológicas-Bioquímica, Universidade Federaldo Rio Grande do Sul, Av. Ramiro Barcelos 2600, 90035-003, Porto Alegre, RS, Brazil

Laboratório de Etnofarmacologia, ICBS, Universidade Federal do Rio Grande do Sul, Av. Sarmento Leite 500/202, 90046-900, Porto Alegre, RS, Brazil

CP 5072, 90041-970, Porto Alegre, RS, BrazilSearch for more papers by this author
First published: 15 May 2002
Citations: 17

Abstract

Alcohol infusions of roots of Ptychopetalum olacoides Benth. (PO), known as Marapuama or Muirapuama, are used in the Brazilian Amazon as a ‘nerve tonic’. Over the years PO has been found increasingly in phytoformulations and regarded as a stimulant, claimed to enhance physical and mental performances. This study determined that a P. olacoides ethanol extract (30, 100 and 300mg/kg) decreased exploratory behaviour in the hole-board test, without interfering with locomotion or motor coordination (rota-rod test). The data are comparable to that obtained with pentylenetetrazol (40 mg/kg), suggesting an anxiogenic effect of P. olacoides. Copyright © 2002 John Wiley & Sons, Ltd.

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